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Stefan Marz, Anja Schlicht and Urs Hugentobler
Today, concepts within the Global Geodetic Observing System (GGOS) aim a Terrestrial Reference System (TRS) with 1 mm accuracy and long-term stability of 0.1 mm/year. GETRIS (Geodesy and Time Reference In Space) is a concept that aims to realize a relati...
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Denise Keil, Stefan Scharring, Erik Klein, Raoul-Amadeus Lorbeer, Dennis Schumacher, Frederic Seiz, Kush Kumar Sharma, Michael Zwilich, Lukas Schnörer, Markus Roth, Mohamed Khalil Ben-Larbi, Carsten Wiedemann, Wolfgang Riede and Thomas Dekorsy
Environmental pollution exists not only within our atmosphere but also in space. Space debris is a critical problem of modern and future space infrastructure. Congested orbits raise the question of spacecraft disposal. Therefore, state-of-the-art satelli...
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Jia Yang, Zhong Zhang, Fanghua Jiang and Junfeng Li
Space-based gravitational wave (GW) detection at low frequencies is of great scientific significance and has received extensive attention in recent years. This work designs and optimizes the low-energy transfer of the heliocentric formation of GW detecto...
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Haoxiang Su, Zhenghong Dong, Lihao Liu and Lurui Xia
The traversal inspection of satellites in satellite constellations or geosynchronous orbits has been a focus of research. A large number of variable orbit requirements in the ?single-to-single? mode severely affects the efficiency of inspections. To addr...
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Jian Huang, Xiangxu Lei, Guangyu Zhao, Lei Liu, Zhenwei Li, Hao Luo and Jizhang Sang
For Geosynchronous Earth Orbit (GEO) objects, space-based optical surveillance has advantages over regional ground surveillance in terms of both the timeliness and space coverage. However, space-based optical surveillance may only collect sparse and shor...
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Pardhasai Chadalavada, Tanzimul Farabi and Atri Dutta
In this paper, we consider a recently developed formulation of the electric orbit-raising problem that utilizes a novel dynamic model and a sequence of optimal control sub-problems to yield fast and robust computations of low-thrust trajectories. This pa...
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Yong Wan, Xiaoyu Zhang, Yongshou Dai and Xiaolei Shi
It is expected that the problem of the azimuth cutoff wavelength in single-satellite synthetic aperture radar (SAR) observations can be solved by means of the cooperative observation of networked SAR satellites. Multiview SAR wave synchronization data ar...
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Yanxi Yang, Jinguang Jiang and Mingkun Su
The characteristic of the satellite repeat shift time can reflect the status of the satellite operation, and is also one of the key factors of the sidereal filtering multipath correction. Although some methods have been developed to calculate the repeat ...
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